Hi - I've had conflicting answers on this at the Apple Store today so I'd like to ask the question on here again. I would like to use a Mac for work and consequently would prefer the greater portability of the 13" model (plus it fits in my Tumi bag and the 15" doesn't). However, at home the computer will be used for editing of AVCHD hi def movies which will be burnt to blu-ray. I will also use the computer for editing of 15mp RAW files from my dSLR camera. The computer will be attached to a 24" dell monitor so screen real estate is not an issue. I want to emphasise that the video and photo editing are _not_ work related and are for my personal pleasure only (hobby). Is the 13" up to the job? The lack of a discrete gpu is my main concern. One of the guys at the genius bar told me that without the discrete gpu Aperture 2 can really start to slow down and its quite annoying. Cheers, Dub.